#include "stdio.h"

int twoDigitAdd(int a, int b) {
    //todo write your algorithm hereint c;
	c = a + b;
	if (c > 99){
		c = c % 100;}
    return c;
}

int main(void)
{
    int a = 45;
    int b = 56;
    printf("%d add %d is %2d", a, b, twoDigitAdd(a, b));
    scanf("%d");
    return 0;
}

